add git fetch to migration instructions

Jacky Zhao

2023-08-20 90d6c1ed24283d0b046ba7eee2e6533a73cf3683

 quartz/components/ContentMeta.tsx

@@ -13,9 +13,7 @@
      }

      segments.push(timeTaken)
      return (
        <p class="content-meta">{segments.join(", ")}</p>
      )
      return <p class="content-meta">{segments.join(", ")}</p>
    } else {
      return null
    }